:root {
    --primary: #4f46e5;      /* Indigo 600 */
    --primary-hover: #4338ca;/* Indigo 700 */
    --primary-light: #e0e7ff;/* Indigo 100 */
    
    --secondary: #0ea5e9;    /* Light Blue 500 */
    --accent: #f59e0b;       /* Amber 500 */
    
    --bg-color: #f8fafc;     /* Slate 50 */
    --surface: #ffffff;
    --surface-hover: #f1f5f9;/* Slate 100 */
    
    --text-main: #0f172a;    /* Slate 900 */
    --text-muted: #64748b;   /* Slate 500 */
    --border: #e2e8f0;       /* Slate 200 */
    
    --danger: #ef4444;
    --success: #10b981;
    
    --radius-sm: 12px;
    --radius: 24px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 2px 8px -2px rgba(15, 23, 42, 0.05);
    --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 25px 50px -12px rgba(15, 23, 42, 0.15);
    --shadow-colored: 0 10px 25px -5px rgba(79, 70, 229, 0.3);
    
    --font: 'Plus Jakarta Sans', -apple-system, sans-serif;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

[data-theme="dark"] {
    --primary: #6366f1;      /* Indigo 500 */
    --primary-hover: #818cf8;/* Indigo 400 */
    --primary-light: #312e81;/* Indigo 900 */
    
    --bg-color: #020617;     /* Slate 950 */
    --surface: #0f172a;      /* Slate 900 */
    --surface-hover: #1e293b;/* Slate 800 */
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: #1e293b;
    
    --shadow-sm: 0 2px 8px -2px rgba(0, 0, 0, 0.5);
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    --shadow-colored: 0 10px 25px -5px rgba(99, 102, 241, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font);
    background-color: var(--bg-color);
    color: var(--text-main);
    transition: background-color 0.4s, color 0.4s;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary { 
    background: linear-gradient(135deg, var(--primary), var(--secondary)); 
    color: #fff; 
    box-shadow: var(--shadow-colored);
}

.btn-primary:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 15px 30px -5px rgba(79, 70, 229, 0.4); 
    background: linear-gradient(135deg, var(--secondary), var(--primary)); 
}

.btn-outline { 
    background: transparent; 
    border: 2px solid var(--border); 
    color: var(--text-main); 
}
.btn-outline:hover { 
    border-color: var(--primary); 
    color: var(--primary); 
}

/* Header - Ultra Modern Glassmorphism */
.header {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    transition: background-color 0.3s;
}

[data-theme="dark"] .header {
    background: rgba(15, 23, 42, 0.7);
    border-bottom: 1px solid rgba(30, 41, 59, 0.6);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 40px;
    display: flex;
    align-items: center;
    gap: 40px;
}

.logo {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-main);
}
.logo span { 
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Search Box */
.search-box {
    flex-grow: 1;
    max-width: 600px;
    position: relative;
    display: flex;
    background: var(--surface-hover);
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    transition: var(--transition);
}
.search-box:focus-within {
    background: var(--surface);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
}
.search-box input {
    flex-grow: 1;
    background: transparent;
    border: none;
    padding: 14px 24px;
    font-size: 15px;
    color: var(--text-main);
    outline: none;
    font-weight: 500;
}
.search-box button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0 24px;
    margin: 4px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}
.search-box button:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

/* Search Suggestions */
.search-suggestions {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    display: none;
    z-index: 100;
    overflow: hidden;
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-icon {
    position: relative;
    font-size: 22px;
    color: var(--text-muted);
    cursor: pointer;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: transparent;
    transition: var(--transition);
}
.nav-icon:hover { 
    background: var(--surface-hover); 
    color: var(--primary); 
    transform: translateY(-2px);
}

.badge {
    position: absolute;
    top: 0px;
    right: 0px;
    background: var(--accent);
    color: white;
    font-size: 12px;
    font-weight: 800;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--surface);
    box-shadow: 0 2px 5px rgba(245, 158, 11, 0.4);
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text-muted);
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.theme-toggle:hover { 
    background: var(--surface-hover); 
    color: var(--text-main);
    transform: rotate(15deg);
}

/* User Dropdown */
.user-menu-trigger { position: relative; }
.user-dropdown {
    position: absolute;
    top: calc(100% + 15px);
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 260px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: var(--transition);
    overflow: hidden;
}
.user-menu-trigger:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.user-info { padding: 20px; background: var(--surface-hover); }
.user-info strong { display: block; font-size: 16px; font-weight: 700; color: var(--text-main); }
.user-info small { color: var(--text-muted); font-size: 13px; }
.divider { height: 1px; background: var(--border); margin: 5px 0; }
.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
}
.user-dropdown a:hover { background: var(--surface-hover); color: var(--primary); padding-left: 25px; }
.user-dropdown .text-danger:hover { color: var(--danger); }

/* Category Ribbon */
.category-ribbon {
    border-bottom: 1px solid var(--border);
    background: transparent;
}
.category-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    gap: 40px;
    padding: 0 40px;
    overflow-x: auto;
    scrollbar-width: none;
}
.cat-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}
.cat-link:hover, .cat-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Main Container */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px;
    width: 100%;
    flex-grow: 1;
}

/* Cards */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-main);
}
.form-control {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text-main);
    font-family: var(--font);
    font-size: 15px;
    transition: var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 80px 40px 30px;
    margin-top: auto;
}
.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 50px;
    margin-bottom: 60px;
}
.footer h4 { margin-bottom: 25px; font-size: 18px; font-weight: 800; color: var(--text-main); }
.footer a { display: block; color: var(--text-muted); margin-bottom: 15px; font-size: 15px; font-weight: 500; }
.footer a:hover { color: var(--primary); padding-left: 5px; }
.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
}